#include<iostream>
#define _ using
#define __ namespace
#define ___ std
#define ____ ;
#define _____ int
#define ______ main
#define _______ (){
#define ________ a
#define _________ ,
#define __________ b
#define ___________ cin
#define ____________ >>
#define _____________ cout
#define ______________ <<
#define _______________ +
#define ________________ return
#define _________________ 0
#define __________________ }

_//_______________________________________________________________________________________________________________________________
__//______________________________________________________________________________________________________________________________
___//_____________________________________________________________________________________________________________________________
____//____________________________________________________________________________________________________________________________
_____//___________________________________________________________________________________________________________________________
______//__________________________________________________________________________________________________________________________
_______//_________________________________________________________________________________________________________________________
_____//___________________________________________________________________________________________________________________________
________//________________________________________________________________________________________________________________________
_________//_______________________________________________________________________________________________________________________
__________//______________________________________________________________________________________________________________________
____//____________________________________________________________________________________________________________________________
___________//_____________________________________________________________________________________________________________________
____________//____________________________________________________________________________________________________________________
________//________________________________________________________________________________________________________________________
____________//____________________________________________________________________________________________________________________
__________//______________________________________________________________________________________________________________________
____//____________________________________________________________________________________________________________________________
_____________//___________________________________________________________________________________________________________________
______________//__________________________________________________________________________________________________________________
________//________________________________________________________________________________________________________________________
_______________//_________________________________________________________________________________________________________________
__________//______________________________________________________________________________________________________________________
____//____________________________________________________________________________________________________________________________
________________//________________________________________________________________________________________________________________
_________________//_______________________________________________________________________________________________________________
____//____________________________________________________________________________________________________________________________
__________________//______________________________________________________________________________________________________________
